ML20005G486

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Updates Response to Insp Repts 50-282/86-07 & 50-306/86-07 Provided by 860819 Ltr.Listed Actions Taken as Result of Task Force Evaluation,Inlcluding Implementation of Work Control Process for Substation Maint
ML20005G486
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 12/11/1989
From: Larson C
NORTHERN STATES POWER CO.
To: Axelson W
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 9001190224
Download: ML20005G486 (2)


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, Northem Slabes Power Company

? 414 Nicollet Mall Minneapolis, Minnesota 654011927 E Telephone (612) 330-5500 7

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Mr W L'Axelson,. Chief

. Projects' Branch-2, Region III U:S Nuclear. Regulatory Commission c799 Roosevelt Road

~ Glen Ellyn,> Illinois- 60137

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< ~ < PRAIRIE ISLAND NUCLEAR GENERATING PLANT

- Docket Nos', 50 282 License Nos. DPR '

50-306 DPR-60 Supplemental Response to Notice of Violation

, On Substation Work Control Insoection Recorts No. 50-282/86007 and 50-306/86007 The' purpose of-this letter is to update our response to Insp.ection Reports No.

1282/86007;and 306/86007 which was provided by our letter dated August 19,

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'1986, e

Violation-No. 3-in the subject inspection report concerned procedural deficiencies'in maintenance activities:in the Prairic Island Substation.

As'part of-our. response to this. violation, we committed to perform a task analysis ~ofJthe' relay panels in the substation to identify potential rearrangement.of equipment and re labeling to help avert future human errors.

Subsequent to:the event which resulted in the notice of violation, a Task Force was formed'to evaluate improvements in operating and maintenance-activities in=the NSP nuclear plant substations. The following actions were taken'as.a result of the task force evaluation:

11.A work control process for substation maintenance was implemented.

'2. Procedures were developed to address regular routine maintenance

. activities in the substation.

3. Substation drawings and ' labeling were field checked for accuracy.

< 4 A substation coordinator function was established in the Production Plant Maintenance Department with site coordinators at each plant.

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'These actions'have. increased the quality of the work performed in the substation and reduced.the probability of error during substation maintenance.

. .During the Task. Force evaluation,.the desirability of a task-analysis'of the

substation equipment house was reviewed.. While.a task analysis was found to

'.be desirable, it was concluded,that with the' measures described above in i place, the benefits'that could be: gained from a task. analysis were not great enough- to justify the performance of a task analysis. We would like to modify our response to Violation No. 3 of the subject inspection reports-to reflect-l, ,that no-task analysis will be performed.

j Please contact us if you have any questions relatedLto our response to the subject ~ inspection reports.-

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C E La on

'Vice Pres dent Nuclear Generation

_c: . Regional Administrator III, NRC Senior Resident Inspector, NRC NRR Project Manager, NRC

, C Charnoff

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